Linear Dynamics with Abaqus - 4realsim.com · Day 1 Lecture 1 Introduction to Abaqus Linear...

Linear Dynamics with Abaqus

2017

Course objectives Upon completion of this course you will be able to:

Extract eigenmodes about a certain frequency

Determine whether the number of extracted eigenmodes is sufficient to represent the structure's response

adequately

Perform transient, steady-state, response spectrum and random response analyses using the eigenmodes

Use multiple base motions

Apply damping in linear problems

Targeted audience

Simulation Analysts

Prerequisites This course is recommended for engineers with experience using Abaqus

About this Course

2 days

Day 1

Lecture 1 Introduction to Abaqus Linear Dynamics

Lecture 2 Extracting Real Eigenvalues

Workshop 1 Eigenvalue Natural Frequency Extraction

Lecture 3 Modal Superposition

Lecture 4 Damping

Lecture 5 Base Motion Excitation

Lecture 6 Modal Transient Dynamics

Workshop 2 Modal Dynamics

Day 2

Lecture 7 Response Spectrum Analysis

Workshop 3 Response Spectrum

Lecture 8 Steady-State Harmonic Response

Workshop 4 Steady-State Dynamics

Lecture 9 Introduction to Random Response

Workshop 5 Random Response Analysis

Lecture 10 Complex Eigenvalue Analysis

Additional Material

Appendix 1 Introduction to Nonlinear Dynamics

Appendix 2 Nonlinear Dynamics: Abaqus Usage

Appendix 3 Nonlinear Dynamics Examples

SIMULIA

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Portfolio of established, best-in-class products

Abaqus, Isight, Tosca, fe-safe, Simpack

* Included in extended licensing pool

SIMULIA’s Power of the Portfolio

Safety Factors Creep-Fatigue Interaction

Weld Fatigue

• Durability Simulation

• Low Cycle and High Cycle Fatigue

• Weld, High Temperature, Non-metallics fe-safe

Material Calibration Workflow Automation

Design Exploration Isight

• Process Integration

• Design Optimization

• Parametric Optimization

• Six Sigma and Design of Experiments

Realistic Human Simulation High Speed Crash & Impact

Noise & Vibration Abaqus

• Routine and Advanced Simulation

• Linear and Nonlinear, Static and Dynamic

• Thermal, Electrical, Acoustics

• Extended Physics through Co-simulation

• Model Preparation and Visualization

Tosca • Non-Parametric Optimization

• Structural and Fluid Flow Optimization

• Topology, Sizing, Shape, Bead Optimization

Conceptual/Detailed Design

Weight, Stiffness, Stress

Pressure Loss Reduction

Complete System Analyses (Quasi-)Static, Dynamics, NVH

Flex Bodies, Advanced Contact

• 3D Multibody Dynamics Simulation

• Mechanical or Mechatronic Systems

• Detailed Transient Simulation (Offline

and Realtime)

Simpack

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Go to www.3ds.com/slc

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SIMULIA Training

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Legal Notices

The software described in this documentation is available only under license from Dassault Systèmes

or its subsidiaries and may be used or reproduced only in accordance with the terms of such license.

This documentation and the software described in this documentation are subject to change without

prior notice.

Dassault Systèmes and its subsidiaries shall not be responsible for the consequences of any errors or

omissions that may appear in this documentation.

No part of this documentation may be reproduced or distributed in any form without prior written

permission of Dassault Systèmes or its subsidiaries.

© Dassault Systèmes, 2016

Printed in the United States of America.

Abaqus, the 3DS logo, and SIMULIA are trademarks or registered trademarks of Dassault Systèmes or

its subsidiaries in the US and/or other countries.

Other company, product, and service names may be trademarks or service marks of their respective

owners. For additional information concerning trademarks, copyrights, and licenses, see the Legal

Notices in the SIMULIA User Assistance.

Revision Status

Lecture 1 11/16 Updated for Abaqus 2017


Lecture 3 11/16 New for Abaqus 2017








Appendix 1 11/16 Updated for Abaqus 2017



Workshop 1 11/16 Updated for Abaqus 2017





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L1.1

Lesson content:

Dynamic Response

When to Consider Dynamic Effects

Linear Dynamics Procedures

Linear Dynamics Software Architecture

Lesson 1: Introduction to Abaqus Linear Dynamics

1.5 hours

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L2.1

Lesson content:

Problem Formulation

Eigenvalue Solution Methods

Example: Engine Block Frequency Extraction

Frequency Output

Frequencies of Preloaded Structures

Extracting Repeated Eigenfrequencies

Residual Modes

Workshop Model Description

Workshop Preliminaries

Workshop 1: Eigenvalue Natural Frequency Extraction (IA)

Workshop 1: Eigenvalue Natural Frequency Extraction (KW)

Lesson 2: Extracting Real Eigenvalues

3 hours

Both interactive (IA) and keywords (KW) versions of the

workshop are provided. Complete only one.

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L3.1

Lesson content:

Introduction

Modal Superposition

Example: Modal Reduction and Superposition

Example: Cantilever Beam

Lesson 3: Modal Superposition

0.5 hours

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L4.1

Lesson content:

Introduction

Damping in Direct Solutions

Damping in Modal Subspace Projection Solutions

Damping in Modal Superposition Procedures

Material Damping

Element Damping

Global Damping

Modal Damping

Damping Controls

Summary

Lesson 4: Damping

1.5 hours

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L5.1

Lesson content:

Introduction

Primary Base Motion

Secondary Base Motions

Usage

Example

Lesson 5: Base Motion Excitation

45 minutes

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Lesson content:

Introduction

Excitation and Output

Example

Subspace Solutions for Transient Dynamics

Workshop 2: Modal Dynamics (IA)

Workshop 2: Modal Dynamics (KW)

Lesson 6: Modal Transient Dynamics

2 hours



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L7.1

Lesson content:

Introduction

The Response Spectrum

Determining Peak Modal Response

Modal Summation Methods

Separation of Modal Responses into Periodic and Rigid Responses

Combining Results from Multiple Spectrums

Spectrum Definition

Response Spectrum Usage

Response Spectrum Example

Workshop 3: Response Spectrum (IA)

Workshop 3: Response Spectrum (KW)

Lesson 7: Response Spectrum Analysis

2 hours



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Lesson content:

Introduction

Steady-State Dynamics Solution Procedures


Steady-State Dynamics Usage

Comparative Example

Workshop 4: Steady-State Dynamics (IA)

Workshop 4: Steady-State Dynamics (KW)

Lesson 8: Steady-State Harmonic Response

2 hours



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L9.1

Lesson content:

Overview


Random Response Usage

Base Motion Example

Steady-State Dynamics Alternative Approach

Workshop 5: Random Response Analysis (IA)

Workshop 5: Random Response Analysis (KW)

Lesson 9: Introduction to Random Response

2 hours



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L10.1

Lesson content:

Overview

Implementation

Brake Squeal Analysis

Lesson 10: Complex Eigenvalue Analysis

75 minutes

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A1.1

Appendix content:

Introduction

Equations for Dynamic Problems

Time integration of the equations of motion

Automatic time incrementation

Dynamic Contact

Comparing Abaqus/Standard and Abaqus/Explicit

Appendix 1: Introduction to Nonlinear Dynamics

45 minutes

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Appendix content:

Implicit Dynamics

Explicit Dynamics

Algorithmic Details

Initial Conditions and Loads

Stability and Accuracy of the Trapezoidal Rule

Material Damping

Half-Increment Residual Tolerance

Appendix 2: Nonlinear Dynamics: Abaqus Usage

75 minutes

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Appendix content:

Damped shallow arch

Ball impact

Tennis racket and ball

Crimp forming

Blade containment

Inertia relief

Appendix 3: Nonlinear Dynamics Examples

1 hour

Linear Dynamics with Abaqus - 4realsim.com · Day 1 Lecture 1 Introduction to Abaqus Linear...

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